There are some on the chart between and north of B and C Cans I have never marked them or gotten hung up on them even though I have trolled that area maybe hundreds of times in the past.. They are probably no longer there as they would be very old and probably rotted away by now. Permanent net stakes I do not believe are legal anymore. But those on the chart are remnant's of days gone by from the commercial fishing industry. Remember that, those stakes were put there permanently for a reason, that area always held the fish the commercial fishermen were after. That is a hint for anyone reading this reply.